the russia business person paid a reported 75 million for the property. but a spokesperson says he has no immediate plans to actually live there. at one point he had a 10% stake in facebook, which is now valued at about 5 billion. >>> and why stream lining regulations could keep people safer. >>> and impacting some of the weekend land plays, the weather in a moment . >>> in new york city today, thousands of people remembered a terrible event 100 years ago. the triangle shirt fire. on that day, in 1911, 146 people, mostly young immigrant women died when a fear fire broke out in a crowded factory. the doors were locked and many were trapped inside. it the movement led to changes in fire safety laws. >>> and this month's huge quake in japan is spurring a sudden rush to retro fit in the bay area. we learned about steps california took to help homeowners, by stream lining regulations. >> reporter: people who own homes like this one on the peninsula are suddenly red alert, trying to make their homes quake safe. this couple are co-owners of an earthquake retro f